Berry’s brother had come forward after media reports showed a photograph of the man in a hospital bed with various tubes attached to him.

Rynn Berry was a known expert on vegetarianism and veganism, and served as a historical advisor to the North American Vegetarian Society.

He had published several books, including “the Vegan Guide to New York City,” “Fruits of Tantalus,” “Food for the Gods: Vegetarianism and the World’s Religions,” “Famous Vegetarians and Their Favorite Recipes,” “The New Vegetarians,” and “Hitler: Neither a Vegetarian nor an Animal Lover,” according to his website.

A memorial service for Peter Berry will be held at St. James Church, 865 Madison Ave., on Jan. 27 at 4 p.m., DNAinfo reported.